Benjamin moser



(No Modl.) V v Q B. MOSER. LOCK.

Patented July 14, 1896.

INVENTOB BENJAMIN NOSER, OF BROOKLYN, NE'W YORK, ASSIGNOR TO THE RUSSELL d ERW'IN MANUFACTURING COMPANY, OF NEW BRITAIN, CONNECTICUT.

LOCK.

SPECIFICATION forming part of Letters Patent No. 563,867, dated July 14, 1896.

V Applicati n filed anuary 8, 1895. Serial No. 534,193. (No model.)

T0 at], whom it may concern: The locking-bolt is designated by the letter Be it known that I, BENJAMIN .MOSER, aciti- II, and its shank passes between the lugs I Z611 of the United States, and a resident of and is provided with the outwardly-acting Brooklyn, in the county of Kings and State spring .T. The novel feature of the bolt II 5 of New York, have invented certain new and consists in the cam projection K, provided useful Improvements in Locks, of which the thereon and adapted for the uses hereinafter following is a specification. explained. Upon one side of the bolt ll is The invention relates to improvements in pivoted the plate L, which is adapted to strike locks; and it consists in the novel features of. the nosing M when the door is moved to its IO construction and combinations of parts hereclosed position and free the dead-locking deinafter described, and particularly pointed vice preparatory to the bolt H by its contact out in the claims. with said nosing, being driven in to the lock- The invention will be fully understood from casing A. the detailed explanation hereinafter given, Vithin the lock-casing A and at one side 15 reference being had to the accompanying of the bolt H is arranged the dead-locking drawings, in whichplate N, having the longitudinal slot 0 to Figure 1 is a face view of the interior of a move along the guiding-pin P, and said plate lock constructed in accordance with and emis provided at its outer end with the flange 0,, bodying the invention, the figure being partly which, as illustrated in Fig. 2, is in close re- 20 in section on the dotted line 1 l of Fig. :2. lation to the inner surfaces of the plate L, Fig. 2 is a transverse section of same on the pivoted to the bolt II. The plate N is pro dotted line 2 2 of Fig. 1. Fig. 3 is a devided at the inner end of the slot 0 with the tached view of the bolt withdrawn from the recess R and adjacent thereto with the camlock-casing and illustrating the obverse face surface S; and the said plate N is connected 7 5 25 thereof. Fig. 4 is a detached elevation of by the rod T with the outer end of the lever the plate by which with the connecting de- D by means of a pin V, passing from said levices the bolt may be dead-locked in its outver through the slot \V out in said rod T, the ward position. Fig. 5 is a central longitudisaid slot permitting an inward thrust of said nal section of the key-cylinder, the said secplate N without affecting the lever D. The 0 tion being on the dotted line 5 5 of Fig. 7 lock-casing is provided with a pin a, which is and the key being omitted. Fig. 6 is a like within the slot 0 of the plateNand is adapted view of same, showing the key in position to engage the Walls of the recess R, formed in and the tumblers set to permit the turning of said plate N for the purpose of locking said the hub receiving the key. Fig. 7 is atransplate in its outward position and causing the 8 5 verse section of same on the dotted line 7 7 said plate to dead-lock the bolt H in its outof Fig. 5 and on an enlarged scale, the key ward position. being omitted; and Fig. 8 is a side elevation It will be observed upon reference to Fig. of the hub. 1 that the cam'surface S of the plate N is adapt- In the drawings, A designates the usual ed to be engaged by the cam projection K on 4o lock-casing, having the sleeves B of custo1nthe bolt II and that when the said cam-surary form to receive the sections of the usual faces S K are in the position in which they swiveled knob-spindle, the said sleeves B beare illustrated in Fig. 1 the plate N will have ing provided with the arms C to engage the been given a sufficient elevation for the relever D of customary form. In the casingA cess R to encompass and engage the lower 9 5 5 are the reciprocating finger-bolts E F, conpart of the pin a, thereby locking, the said nected by the plate G, and one of which is plate N in the position shown, andsaid plate adapted when at its inner position to engage N being thus locked in position its cam proone of the sleeves B, as illustrated in Fig. 1, jection S, being at the inner side of the proin the customary manner. The finger-bolts j ection K on the bolt, will serve to lock the lat 10 50 E F and plate G are of ordinary construction ter in its outward position. In order to free and not specifically claimed herein. the bolt H, so that it may be moved into the lock-casing, it is necessary that the plate N should receive a slight movement inward prior to the bolt H being started inward, so that the cam-surface S thereof may pass from the cam projection K on the bolt, and the said plate be thereby permitted to lower sufficientlv to free the recess R from the pin a, after which the said plate N and bolt H may be moved inward simultaneously.

The bolt H may be moved into the lock-casing and the preliminary movement of the plate N performed either from the knob at the inner side of the door through the medium of the lever D or by the proper key inserted into the lock-cylinder and acting through the pivoted lever 17, whose upper end engages the shoulder 0, formed on the said plate N, and which lever 6 below its said upper end is adapted to engage the bolt H. The lever b first moves the plate N a slight distance inward and then comes into contact with the bolt H and moves it with the plate N into the lockcasing. After the bolt H and plate N have been withdrawn into the lock-casing and the door opened, the spring J will drive the bolt H outward and the spring (I will drive the plate N outward, and during this movement the cam-surfaces S on the said plate N and the cam projection on the said bolt H will come together and cause the notch R to engage the pin a, thereby locking the said plate N and bolt H at their outward position.

In order to close the door, the plate N must be freed from the bolt H in order that when the latter strikes the nosing M it will move into the lock-casing and permit the door to close, and hence the plate L has been provided in near relation to the flange Q on said plate N, the action of the said plate L being such that upon the door being closed it will strike the nosing a little in advance of the contact of the bolt H therewith and pressing against the flange Q will move the plate N inward sufficiently to free the cam-surfaces S K from each other and the recess R from the pin P, thus unlockingthe bolt H and permitting it upon its contact with the nosingM to freely move into the lock-casing. With every outward movement of the bolt H the cam-surfaces S K come into position to wedge against each' other and lock the bolt, and just previous to every inward movement of the said bolt the cam-surfaces S K are released from each other in order to free the bolt and admit of its inward movement.

The key-cylinder (lettered e) is of the usual Yale pattern and contains the key-hub f, whichis provided with the tumbler-recesses g in line with the tumbler-recesses h in the main body of the cylinder e. lVithin the recesses g h are respectively placed the tumblers i j, the latter being different from the former in that they are provided with the annular grooves 7t and shoulders or heads m. The recesses h are of customary form, but the grooves g are provided with the laterally-extending recesses 02, the purpose of which is in connection with the shoulders m to prevent the look from being picked. hen the key is not in the lock-cylinder, the tumblers will assume the position in which they are illustrated in Fig. 5, and when the key is in the cylinder the said tumblers will assume the position in which they are illustrated in Fig. 6 and permit the key-hub f to rotate and thereby through the lever 0 and lever b to move the plate N and bolt H.

WVhen an attempt is made to pick a lock of the general character hereinbefore described, it is customary to apply pressure axially to the key-hub f and thereafter by the sense or feeling to properly move the individual tumblers, so that the hub may be permitted to rotate, and one object of the construction described is upon said pressure being applied to said hub f to provide means whereby the tumblers will lock the said hub and be prevented from moving inward after the said pressure has been applied. This feature will be most readily understood by reference to Fig. 7, in which it will be seen that if pressure is applied to the hub f the recesses n will pass upon the heads m and lock the said hub and the tumblers j together, thereby preventing the tumblers from being pushed inward along the recesses h. If during. the operation of picking the look any one of the tumblers j should. have its head 'm, remain within the recess 02, it would be impossible to pick the lock, since the one tumbler would prevent the rotation of the key-hub f. It is plain, however, that upon pressure being applied to the hub f in the line of its axial rotation all of the recesses n will engage all of the heads on or the said tumblers j and effectually prevent the lock from being picked.

lVithout limiting my invention to precise details of construction, what I claim as new, and desire to secure by Letters Patent, is-

1. In a lock the bolt having the cam projection, combined with the locking-plate having the recess to engage a rigid pin and also a cam-surface to be engaged by said cam proj ection, and means for freeing said plate preparatory to the bolt being withdrawn into the lock-casing; substantially as set forth.

2. In a lock the bolt, combined with the locking-plate having a recess to engage a rigid pin, a projection on the bolt to maintain the relation of said recess and pin while the bolt is in its outward position, and means for moving said plate inward in advance or said bolt; substantially as set forth.

3. In a lock the bolt, combined with the locking-plate having a recess to engage a rigid pin, a projection on the bolt adaptedto wedge against said plate and insure the engagement of said recess and pin, means for freeing said plate from either the knob or key-cylinder, and the pivoted lever-plate adapted to strike the nosing when the door is closed and start said plate inward in advance of the bolt; su bstantially as set forth.

4:. In alock the bolt, combined with the lock-- IIO ing-plate having a recess to engage a rigid pin, a projection on the bolt adapted to maintain the engagement of said recess and pin, means for freeing said plate from the door-knob, the key-cylinder having the lever 0, and the pivoted lever 13 having one arm in near relation to said lever o and its other arm in engagement with said plate and in line With a shoulder on said bolt to engage the same; substantially as set forth.

5. In a lock the bolt having the projection K and pivoted plate L, combined with the sliding locking-plate N having a recess R and surface S, the pin in position to be engaged by said recess, means for guiding said plate, 15

York and State of New York, this 22d day of 20 December, A. D. 1894.

BENJAMIN BIOSER.

Witnesses:

CHAS. O. GILL, EDWARD D. MILLER, 

